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在人工繁殖过程中,亲鱼的选择至关重要。亲鱼选择得好,催产率、受精率、孵化率都高。反之,则生产就会大受影响。下面谈谈亲鱼的选择方法。鉴别亲鱼的成熟度方法综合起来为三个字:看、摸、挤。看:就是看亲鱼腹部大小,卵巢及体内的流动情况和生殖孔形状及颜色,卵巢的后伸的位置;
In the process of artificial breeding, the choice of broodstock is crucial. Well-selected broodstock, oxytocin rate, fertilization rate, hatching rate is high. On the contrary, the production will be greatly affected. The following talk about the choice of broodstock methods. To identify the maturity of the broodstock method combined for three words: look, touch, squeeze. Look: Is to see the size of the brood abdomen, ovarian and body fluidity and reproductive hole shape and color, ovarian extension position;